Apparatus fob cooling and annealing metal bars



J. R. Gaonss APFARATUS FOR COOLING AND ANNEALING IIETAL BARS Aug. 18, 1931.

Original Fahd Dec. 1, 1524 2 Sheets-Shut 1 JzvaraZbr: Jrome R Gear 9 LB mrrzey ill A 1931 J. R. GEORGE APPARATUS Pox cooLING mu ANNEALING METAL ans Original run bus. 1', 1924 2 Sheets-Sheet 2 In'r/an Tor."

Jromc FE Geo-r e Reissued Aug.-18, 1931 J'EBOKE B. GEORGE, OF WORCESTER,

fmuc'rron conrnrr, or woncnsrnn, nassacnusarrs, a conrona'r'ro'if or aussacnusnr'rs APPARATUS FOR COOLING AND- METAL Original 110'. 1,642,437, dated September 1a, 1927,- Serial No. 7511.241, Med December 1, 1924. mascot for reissue filed Iebruary 19, 1881. Serial No. 517,086.

The resent invention relates to the hanretraoted positionshownin full lines in Fig.

dlin 0 hot metal bars as they emerge from of the same to shearing devices, or other mechanism, for operating on said bars. The invention applies particularly to the handling of rolled stock of flat cross section, such'as used in the manufacture of springs, and contemplates among other things, the mechanical assemblageof suchstock on edge, upon a-cooling bed, in a continuous pack or pile, in order to secure self-annealing and slow cooling by the well known pack method. 7

Other and further objects of the invention will be apparent from the following description thereof, reference being had in this connection to the accompanying drawings, wherein-'-- Fig. 1 is a view inside elevation, partly -in section, showing mechanism embodying the invention. I

Fig: 2 is a plan view of the mechanism shown in Fig. 1.

Fig. 3 is an enlarged view of one of the pusher bars used in connection @with the movement of the material across the coolmg Iiike reference characters refer to like parts in the different figures.

Referring to the drawings, there is shown a series of conveyor rolls 1, 1, the same constituting, for example, the hot runout of a rolling mill, not shown, which may be operated for the production of successive elongated bars or flat cross section, as indicated at 2. According to the'invention, the bars 2, 2; as run out successively on the rolls 1, 1, are to be shifted broadside from said rolls onto a downwardly inclined ide surface 3 for gravity moviement, broa side, incline. Any -suitable means may be rovided for moving the bars broadside 0 the rolls 1, 1; as here shown, said rolls 1, 1, are skewed, and the effect of this is to bring each bar into edgewise contact throughout its len with a series of alined straight edged 1m are 4, 4, alternating with the several rollers 1, 1.

During the runout of each bar 2, these pushers 4, 4, are stationary and occupy the down said 1.. The several pushers .are connected tomssacnusii'r'rs, assrsnon 'ro nonent gorigether. for movement in unison, being here shown for-this purpose as attached by links 5, 5, to a swinging member 6, which is oscillated at intervals by its connection, through rod 7 to a crank disk 8. With each,

delivery of a bar 2 from the mill into edgewise contact with the retracted straight edges 4, 4, the crank disk 8 is given one complete' revolution, which serves to move the straight edges from the full to the dotted line positions shown in Fi 1, andback again,-this action pushing t e bar 2 broadside ofi of the rolls 1, 1, and returning the straight edges to retracted position, in readiness for action on the next succeeding bar 2.

Each bar 2 thus moved broadside across the rolls 1, 1, is discharged by this movement Tonto the downwardly inclined guide surface 3, the bar sliding by gravity across saidsurface 3 and then dropping broadside 011' said surface until its advancing longitudinal edge Strikes the horizontal surface9,forming part of a cooling bed 10 of any desired construc- "tion'.''"" By this movement each bar 2 arrives at the cooling bed surface 9 with its cross section in a substantially vertical position, the contact with said surface 9 being edge- Wise, and. t e bar. Mi e Prevented. fmm sumlng a flat position y-the loweredge of the inclined surface 3, which prevents tipping in one direction, and by the presence on the other side of a series of fingers 11, which prevent tipping in the other direction.

As illustrated in Fig. 1, each finger 11 is in the form of a bell crank lever. pivotally mounted below the surface 9 on a pin 12, the

lower portion of each lever being weighted, as shown at- 13, so that the other portion extending above the surface 9 assumes a substantially upright position. The weighted portion 13 of each finger resists any deflection from said upright position, and consequently each finger serves effectually, normally, as a stop to prevent the successive bars 2, 2, supported edgewise, from tipping oven-"said fingers .11, however, being subject, as hereinafter described, to depression, below the surface 9, in order to permitthe movement of a bar or of mi across the cooling bed, when I Each bar thus delivered to the surface 9, and supported edgewise thereon, is initially .pre-

vented from tipp' over b the fingers 11 and by the lower of e inclined surface 3, but when said r is shifted broadside inthedirectionofarrow A,F' 1,acrossthe cooling bed it soon moves yond the influenceflgf h sequen in 0 er tomaintain t e edgewise sup rt that is esential to annealing and by the pack method, the tendency of thematerial to tip over into a flat position must be overcome in some other way. This is done by mechanically impartins a bend orcurveto each bar,so that-i of having a straight linecontact with the support ifagg conttliact is ofcurvad or may]? rm, grea y increasing e sta i y of the edgewise supported bars. Moreover, according to the invention, this bending or curvature of the bars is efiected by the selfsame ushing devices which as hereinafter described, pf the bars across the cooling bed 10, as folowsz- 1 As herein shown, a series of pushers 14 14, are d' between the rollers 1,1, t eir forw'a ends being supported on the surface 9, and their rear ends being rovided with a series 'of notches 15, 15, Fig. for the adjustable connection of said pushers to a common cross memberj16. The latter is re rocated' from a crank disk 17 by means aco rod 18,'havingaseries of holes '19, 19, 'for selective connection to the crank pin 20 of disk17, which crank pin also a means of holes 21, 21, in disk 17, may be justed. Inthis way, not only the location of the stroke, but also the length of the stroke, of the series of pushers 14 may be varied. The pushers 14, b meansof their notches 15 are so arranged at their efiecti've lengths diifer; that hate say, their forward ends, resting on the 9, are at difl'erent distances from the opposing face of the bar 2 supported on said surfacecon sequentl ,as the crank disk 17 rotates, the pusher willnotallm with the bar 2 at the same 1ais .11. nsi'derable with centerof the bar, beforfhanmf the 7' v It l e o for. the balance of said amured, this deflation, as shown means, and conprocure the broadside movement 14, actuated thereby in unison,

ngth the tion of 19 21 o crank disk 17. Y A variation in the thickthis is of great impo thegeflectiondfsafidbar by which its s s is 2, is v the ofsuch' of suilicient resistance to prevent forward movement of adjacent portions of the bar until suchportions are en b the shorter ushers 14. Co uen y, w the whole ar 2 is finally pus ed entirely beyond the yielding fingers 11, so as to the latter to return to their norm uprightegositions, said bar has acquired a curv or waved form and is thereby rendered self-supportinsgl, edgewise, on the coolinglbed 10.

As own in Figs.'1 and 2, in t e operation of the ap 'aratus, ushers 14 are given a stroke cient in en to move each successive bar 2 substantia ly to a predetermined location near the end of bed 10,this location bein determined by the number of bars 2 whic it. is desired to accumulate in a pack at said end,'for, annealingby the well known pack method. Each successive bar added to the pack displaces theprecedin bar, the latter 'ng pushed forward see time a distance corresponding to the thickness of the added bar,'until the pack finally reaches its maximum size when the first-bar comes to v the edge 22 of the bed 10. i Thereafter, each addition of a bar 2 to the rear side of the pack results in the discharge of a bar from the front sideof the pack, said discharging bar tipping over the edge 22 and falling flatwise on a suitable receiving. means, here shown as a shuifle bar conve ing mechannlted States Letters Patent No. 359,163, dated Novemism of the typedisclosed in my ber 16, 1920. vSaidv shuflie bar conve mechanism consists. essentially .of pairs 0 movable supportin bars 23, 24, the ends of which, by means 0 suitable eccentrics 25, are given a circular motion, with the bars 23 in advance of the bars 24, so as to produce a step-by-step movement for the material deposited thereon. Said conveying mechanism operates to deposit a lurality 0 bars 2 upon suitable conveyor ro which said bars'2 may be conveyed longitudinall'y to suitable mechanism, not shown, for

ihearfig in multiple into commercial willjbe apparent, the thickness of the packofba'rs'2'onthecoolingbed10ma be byhil d'usting the stroke ofbthe p ers 8 ccomplished y changi n :h ecrank in20inthehole ness of the pack produces a variation in the time that each] bar remains in the pack, and

rtance in an pushers 14, 14' on their forwa stroke and I eahng b ."the pack method. Further control of an; time element is afiorded by changing the ef-, rod 18, thereb Ill thus in ordecreasingthe thi es of the ,Ias the case may be ;this

also a 01115 opportunity for varying the time remote from pusher 14-, since haveduring which'e'ach bar2 inthe park.

notches which engage with the cross member 16; in addition, these notches permit the requisite variation in le cent pushers 14 which p uces the above deor curving of the bars 2 on I scribed bemgg the cooling to render them self-supporting edgewise,it being apparent that any desired degree of curvature or wave formation is obtainable through the adjustment by these notches. V

I claim:

1. In ap aratus of the class described, a horizontal bed edge tosaid bed, means for movin said bars broadside across said'bed, means or curvin said bars as they are moved across the be and means for controlling the number of bars on the bed at one time. v

2. In apparatus of the class described, the combination with a support, of means for effeeling the edgewise delivery to said support 0 successive bars which are normally in. capable of standing edgewise, and means for distorting each bar while on said support to increase its stability on edge.

3. In apparatus of the class described, th combination with a su port, of means for efiecting the edgewisedelivery to said support of a bar which is normally incapable of standing on edge, and means for increasing the edgewise stability of said bar while on said support by deflection thereof.

4. In apparatus of the class described, the combination with a support, of means for effecting the edgewise delivery to said support of a bar which is normally incapable of standin on' edge, and means for imparting a curved form to said bar while on said support, by broadside movement of said bar, thereby to render it self-supporting on edge.-

5. In apparatus of the class described, the combination with means for moving a bar longitudinally, of a su port, means fer efl'ecting the broadside delivery of said bar on edge to said support, and means for moving said bar broadside on said su rt and at the same time giving it a wavee form.

6. In apparatus of the class described,

means for conve g: bar flatwise, means for delivering said lie r roadside from said conveying means, thereby to support it on edge, and means for giving a wave-like form to said bar while on ed e.

7. In a aratus o the class described, a horizon I I ,means for effecting the broad side delivery of a baron ed to said bed, andmeans for 'ving a wavee form to said bar while one. 8. In ap aratus of horizontal means for efl'ecting the edgewise delivery to said bed of a bar which is normally incapable of standing on edge, and

h between adj a-" means for delivering" bars on the class described, a-

means for increasing the edgewise stability of said bar while on said bed by lateral deflection thereof.

9.. In ap aratus of the class described, a horizontal bed, means for directing the edgewise delivery to said bed of a bar that is nor-- .mally incapable of standing on edge, and

means for moving said bar broadside across said bed, said movement serving to deflect said bar to increase its stability while on edge.

10. In'apparatus of the class described, a horizontal bed, means for successively effectin the broadside delivery of barson ed e to said bed, and means for movin said are broadside across said bed, and sai movement giving a wave-like form to each of said bars.

11. In apparatus of the class described, a.

horizontal bed, means for successively eflt'ecting the edgewise delivery to said bed of bars that are normally incapable of standing on edge, means for moving said bars broadside across said bed, and means for increasing the stability of each of said bars While on edge by lateral deflection thereof in advance of its movement across the bed.

12. In apparatus of the class described, means for impartin' lateral deflection to suecessively delivered ars normally incapable of standing onedge, to increase their st'abil ity on ed e, and means for moving a lurality of sai bars, in nested relation, whi e supported on edge.

13. In apparatus of the 7 class described, means for imparting lateral deflection to suc-,

cessively delivered bars normally incapable of standing on edge, to increase their stability on edge, meansfor disposing said bars, in nested relation, in a plurality of edgewise supported packs, and means for moving said pac s broadside.

.14. In apparatus of the class described, 1

conveying means for moving metal bars lon- 'gitudinally, a horizontal cooling bed for receiving said bars on edge from said conveying means, adjustable pushers for curving and bars and moving t em laterally across said cooling bed .to a predetermined osition' against a pack of preceding bars, which pack is thereby moved a distance equal to the thickness of one of said bars, said movement serving to separate the coldest bar from the front of'saidpack as each fresh bar is added to the rear of said .pack.

15. In pparatus of the class described, a horizontal cooling bed to which the bars are delivered on edge, means for moving successively delivered bars broadside on edge across said bed, toform a pack, and conveying means onto which the first bar of said.

ack tips flatwise by gravit as each fresh Bar is added to the other si e of said pack. 16. In apparatus of the class described, a horizontal cooling bed to which bars are successively delivered on edge, pushers for moving and bars broadside on edge across 

